Description This article describes the list of ports required for H.323 video calls in Grandstream Conferencing GVC32XX. 389 statique – TCP ILS Registration (LDAP) 1503 statique – TCP T120 1718 statique – TCP Gatekeeper Discovery 1719 statique – UDP Gatekeeper RAS 1720 statique – TCP H323 Call Setup 1731 statique – TCP Audio Call Control … Read more
Description This article illustrates the scenario when the caller requests Call Completion when called party is busy with Grandstream IP PBX UCM6XXX. You may refer to the complete guide here. By default, when the Call Waiting feature is disabled at the Extensions and IP Phones, the Call Completion request works only on unanswered or timeout … Read more
Description This article describes Grandstream Android Phone GXV32XX as being not responsive when receiving incoming calls. The users are unable to answer or pick up calls from the LCD call screen. This scenario is seen after UCM firmware upgrade. Workaround Please try one of these methods: a. Go to UCM63XX’s WEB UI > Extension > Media > … Read more
Scenario/Test Steps 1. ISP (TATA) VoIP trunk has 100 DIDs and DODs. Configure the SIP Register trunk in UCM A. The SIP Trunk number (pilot number) is 68010200. 2. UCM A and UCM B are connected via Peer Trunk. Keep Trunk CID, Keep Original CID, and Caller ID disabled in Peer Trunks. 3. UCM B has … Read more
Description This article explains the P-Preferred-Identity (PPI) Header in UCM’s INVITE message when UCM forwards the call from the extension to an external or mobile number. Test Steps Packet capture Outbound CID Priority TO vs Request Headers The Request-Line and To headers show the DID used by the PBX, eg. 8887771234 is the DID, it is … Read more
Description Call forward makes the remote working solutions more efficient and ensures continuity of business operation. This article describes the settings required to allow the forwarding of the original Caller ID of external numbers in Grandstream IP PBX UCM. 1. Make sure that the UCM has the latest firmware version 2. Make sure the following settings … Read more
Description Ghost calls will usually affect the phone level. You may find it annoying by getting authorized calls. You can increase the security on the affected phone by setting the following parameter to YES in Grandstream IP Phones – GXP16XX/17XX/21XX and HT8XX ATAs models. Validate Incoming Messages Check SIP User ID for Incoming INVITE Accept … Read more
Description This article describes the configuration steps on how to enable SFTP Data Sync in Grandstream IP PBX UCM with MAC OS. Step 1: Follow this guide to enable SFTP and allow File Sharing in your Macbook Step 2 Navigate to UCM’s Web UI > Maintenance > Backup > Data Sync and enter SFTP’s Administrator … Read more
Description When working with the UCM630X series, you may encounter a warning message labeled “Pending Delivery.” in GDMS. It is important to understand what this means and how it affects your device management. What Does “Pending Delivery” Mean? The “Pending Delivery” status appears when you attempt to assign parameters or settings to an offline Grandstream … Read more
